| boisterous celebration or merrymaking; unrestrained fun: The city is full of conventioneers indulging in their usual high jinks. |
high jinks or hi·jinks  (hī'jĭnks')  pl.n. Playful, often noisy and rowdy activity, usually involving mischievous pranks. |
high jinks
Playful or rowdy activity, often involving mischievous pranks. For example, All sorts of high jinks go on at summer camp after "lights out." About 1700 this term denoted a gambling game accompanied by much drinking, but by the mid-1800s it acquired its present meaning.
